Hapkido is one of Korean Martial Arts. It is a unique Korean MMA that has striking, joint-locking, throwing and ground techniques. This book introduces almost all of Hapkido to readers, such as its history, basal fitness method, self-defense techniques, ground techniques and so on.About the Author:Master of Kyungmukwan Hapkido, KHF Expert manager of Korea Hapkido Federation Author of Martial Arts books How to always in a fight The way of Martial Arts History of Hakido The vision of Martial Arts Correlation of VO2 max and Age